No more sound – Falling Stars by Trident Vitality Gum Review

I loved this, but there is no more sound on my iPad 2 with this app so that takes away the entire purpose of enjoyment :( I have sound on everything else. I have deleted and reloaded,still no sound. Even the Apple Store could not get it to work :( What is the solution?
Review by Sidalee60 on Falling Stars by Trident Vitality Gum.